AIM:To observe the effect of laser therapy combined with disposable lacrimal recanalization catheter(RS model)or dilating lacrimal drainage tube(nasolacrimal canal)for lacrimal duct obstruction in different parts.

METHODS:Form January 2011 to December 2013 in our hospital, 548 patients(657 eyes)with lacrimal duct obstruction were selected. In these patients, 236 patients(298 eyes)with canalicular(or lacrimal duct)obstruction undergone KTP laser combined with RS model disposable lacrimal recanalization catheter; 312 patients(359 eyes)with nasolacrimal duct obstruction undergone KTP laser therapy combined with dilating lacrimal drainage tube. The irrigation of lacrimal passage was sustained. The ducts were removed at 3mo after operations. The condition of lacrimal passage irrigating and the self-reported epiphora at 3mo after tubes removed were taken as evaluating standard.

RESULTS:There were 248 eyes with canalicular(or lacrimal duct)obstruction treated by KTP laser combined with RS duct cured, 33 eyes becoming better, 17 eyes ineffective; there were 301 eyes with nasolacrimal duct obstruction treated by KTP laser combined with dilating lacrimal drainage tube cured, 19 eyes becoming better, 39 eyes ineffective. The total efficiency rate was 91.5%.

CONCLUSION:Patients with lacrimal passage obstruction should be treated with individualized therapy. Laser therapy combined with different silicone tube implantation for lacrimal duct obstruction in different parts is effective and can be used as the preferred method for patient with lacrimal passage obstruction in primary hospital.